JP2006021182A - Combined sewage treatment tank and grease trap tank using thinning material as filter medium - Google Patents

Combined sewage treatment tank and grease trap tank using thinning material as filter medium Download PDF

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JP2006021182A
JP2006021182A JP2004229956A JP2004229956A JP2006021182A JP 2006021182 A JP2006021182 A JP 2006021182A JP 2004229956 A JP2004229956 A JP 2004229956A JP 2004229956 A JP2004229956 A JP 2004229956A JP 2006021182 A JP2006021182 A JP 2006021182A
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tank
filter medium
wastewater
grease trap
contact
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Chukei Honda
忠敬 本田
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that, in the conventional combined sewage treatment tank and a grease trap tank, though purification has been performed by passing through respective tanks such as first and second precipitation tanks, a contact aerator tank, a precipitation chamber and a sterilization tank, they have been separated into the respective tanks, thus a wide space has been required, and further, that maintenance of a filter medium in the contact aeration tank and treatment of precipitates such as sludge in the respective tanks have been needed. <P>SOLUTION: Filter medium obtained by working a thinning material into a chip shape is used as contact filter medium, the chip filter medium is packed into a combined tank, and cylindrical pipes are fixedly installed inside the combined tank, thus, by the filter medium worked into the shape of the thinning material chips, biological treatment with aerobic, mesoaerobic and anaerobic bacteria can be efficiently performed. In this way, the combined treatment system by using a single tank is made possible. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は合併処理浄化槽及びグリストラップ槽内に間伐材を利用した木材チップを接触濾材として使用することにより、好気性、中気性、嫌気性バクテリアの繁殖を促進するための濾床として利用することで各排水の浄化効率を向上させることが可能な接触濾材及び合併処理浄化槽、グリストラップ槽。  The present invention uses a wood chip using thinned wood in a combined treatment septic tank and grease trap tank as a contact filter medium, and is used as a filter bed for promoting the growth of aerobic, aerobic and anaerobic bacteria. The contact filter media that can improve the purification efficiency of each wastewater, combined treatment septic tank, grease trap tank.

汚水の放流先となる河川等が隣接地域になく、また広域にわたる下水道設備等が完備、整理されていない地域においての浄化設備として、家庭、病院、及び事業所等から排出される屎尿、生活排水の処理においては単独処理浄化槽を埋設使用するのが一般的であったが、最近はこの生活排水が汚染源という環境汚染問題等を鑑み屎尿排水及び生活雑排水を処理する合併処理浄化槽の設置が義務づけられている。しかし河川または地下水の汚染問題が数多く発生していることは周知の事実である。各種排水の悪臭の原因は排水中に含まれる有機物等が嫌気性菌による分解の働きによって変化し腐敗して発生する。この悪臭物質を分解し消臭していくことが必要である。  Wastewater discharged from households, hospitals, offices, etc. as purification facilities in areas where there are no rivers, etc., where sewage is discharged in adjacent areas, and where there is a wide area of sewerage facilities, etc. However, in recent years, it has become mandatory to set up a combined treatment septic tank that treats human wastewater and domestic wastewater in view of environmental pollution problems such as domestic wastewater being a source of pollution. It has been. However, it is a well-known fact that there are many pollution problems in rivers and groundwater. The cause of the bad odor of various wastewaters is that organic matter contained in the wastewater changes due to decomposition by anaerobic bacteria and decays. It is necessary to decompose and deodorize this malodorous substance.

合併浄化処理槽として現在使用されている槽は直方体状を形成した槽内部に第1沈澱分離槽、第2沈澱分離槽、接触バッキ槽、沈澱室、消毒槽などの各層を通過することにより浄化を進めている。また、第1、第2沈澱分離槽においては嫌気性菌の増殖による働きで有機物の分解浄化を促進し、固液分離され沈澱物質と液化された水溶物が、槽内部中央下部より形成されたフロックの流入を防ぐため上部から接触バッキ槽へ汚水が送水されていく。接触バッキ槽内部には好気性菌の濾床となるべき濾材が充填されている。  The tank currently used as a combined purification treatment tank is purified by passing through the layers of the first precipitation separation tank, the second precipitation separation tank, the contact back tank, the precipitation chamber, the disinfection tank, etc. inside the rectangular parallelepiped tank. We are promoting. In the first and second sedimentation separation tanks, the decomposition and purification of organic matter is promoted by the growth of anaerobic bacteria, and the solid substances separated and precipitated water and liquefied water are formed from the lower center in the tank. In order to prevent the inflow of floc, sewage is sent from the upper part to the contact back tank. The inside of the contact back tank is filled with a filter medium to be a filter bed for aerobic bacteria.

第1、第2沈澱分離槽内において、嫌気性菌の繁殖により有機物が分解され液化された汚水が接触バッキ槽内に送水され、プラスチック、不織布、合成繊維、ひも状の接触濾材等を使用して、好気性菌によりスラリー性状の物質が形成され濾床として有機物を分解し繁殖していく。またその接触濾材の下部位置に散気管を配置し外部設置のブロワーにより空気を送り好気性菌の繁殖を促進させる。この濾材間を通過することにより、汚水中の有機物を分解浄化させ、さらに沈澱室にて浮上フロックと沈澱フロックに分離し仕切板の下部から消毒槽へと送られ、塩素により滅菌され放流される。しかし、BODの約40%〜60%は微生物の細胞の形態で固定され、SS(浮遊物質)に変化しないので、スラッジの分離分解処理が大変であった。  In the first and second sedimentation tanks, sewage that has been decomposed and liquefied by the growth of anaerobic bacteria is fed into the contact tank, and plastic, non-woven fabric, synthetic fibers, string-like contact filter media, etc. are used. Thus, a slurry-like substance is formed by aerobic bacteria, and the organic matter is decomposed and propagated as a filter bed. In addition, a diffuser tube is arranged at the lower position of the contact filter medium, and air is sent by an externally installed blower to promote the growth of aerobic bacteria. By passing between the filter media, the organic matter in the sewage is decomposed and purified, and further separated into a floating floc and a sedimented floc in the sedimentation chamber, sent to the disinfection tank from the lower part of the partition plate, sterilized by chlorine and discharged. . However, about 40% to 60% of the BOD is fixed in the form of microbial cells and does not change to SS (suspension material), so the separation and decomposition treatment of sludge has been difficult.

また食品関連施設から排出されるBOD、COD値の高い油分を多量に含んでいるとされる飲食業等を営む店舗からの排水に対しての濾過槽の役割を担うグリストラップ槽の設置も業として営む店舗等に義務づけられている。  In addition, installation of grease trap tanks that play the role of filtration tanks for wastewater from stores that are said to contain a large amount of oil with high BOD and COD values discharged from food-related facilities It is obliged to run stores.

またグリストラップ槽においても直方体状を形成した槽内部に3槽及び4槽になるような仕切板を設定し、不織布また網状に形成された濾材を槽内中間位置に配置し油分を多量に含んだ汚水を濾材に通過させることにより汚水排水中の油分を減少させている。しかし物理的な濾過方法のため濾材が目詰まりをおこし、また槽内部に油分が積層されていくため清掃や交換を頻繁に行わなければならない。  Also, in the grease trap tank, partition plates are set up to form 3 tanks and 4 tanks inside the rectangular parallelepiped tank, and the filter medium formed in a non-woven fabric or mesh is placed in the middle of the tank to contain a large amount of oil. The oil content in the waste water is reduced by passing the waste water through the filter medium. However, due to the physical filtration method, the filter medium is clogged, and the oil component is stacked inside the tank, so cleaning and replacement must be performed frequently.

一般家庭では1日約200リットル/人〜250リットル/人の生活排水が排出されている。今後もこの排水量はほとんど変化を起こさないで推移していくと思われる。このように大量の排水を広域下水道が完備された地域と同等に汚染を伴うことなく浄化し排水するためには、広いスペース等が必要であり工事が大がかりになってしまうという問題が発生する。  In general households, daily wastewater of about 200 liters / person to 250 liters / person is discharged per day. The amount of wastewater is expected to change with little change going forward. Thus, in order to purify and drain a large amount of drainage without contamination as well as in a region where a wide-area sewer system is complete, a problem arises that a large space is required and the construction becomes large.

また、従来の接触濾材はヒモ状の繊維を編み込んだ物やプラスチックによる接触濾材、不織布、合成纎維等で加工された接触濾材等が使用されている。しかし脱着式のため水圧の変化等による変形してしまったり、接触濾材の目詰まりが発生してしまうため交換等の不便さが生じたりするので、メンテナンスが度合いが高くなる。  In addition, as the conventional contact filter media, a material in which a string-like fiber is knitted, a contact filter media made of plastic, a non-woven fabric, a contact filter media processed with a synthetic fiber, or the like is used. However, since it is detachable, it is deformed due to a change in water pressure or the like, and the contact filter medium is clogged, resulting in inconvenience such as replacement, and the degree of maintenance becomes high.

第1、第2沈澱分離槽内及び接触バッキ槽内おいて、沈澱フロックが発生する。しかし、BODの約40%〜60%は微生物の細胞の形態で固定され、SS(浮遊物質)に変化し、スラッジの残滓物となり、分離分解処理が大変であった。  Precipitation flocs are generated in the first and second precipitation separation tanks and the contact back tank. However, about 40% to 60% of the BOD was fixed in the form of microbial cells, changed to SS (suspended material), became a sludge residue, and was difficult to separate and decompose.

有害金属等が含まれない一般生活排水及び食品関連施設にて排出される有機物BOD、COD及び洗浄水に含まれるスラリー性の高い排水ならびにT−N(全窒素)、T−P(全リン)、SS(浮遊物質)、油分等を分解し、環境に悪影響を及ぼすことなく、省スペース、低コストで実現することが可能な自然環境型の合併処理浄化槽、グリストラップ槽を提供する。  High-slurry wastewater, TN (total nitrogen), TP (total phosphorus) contained in general household wastewater that does not contain toxic metals, etc. and organic matter BOD, COD, and wash water discharged from food-related facilities Provided are a natural environment type combined treatment septic tank and grease trap tank that can be realized at a low cost and without any adverse effects on the environment by decomposing SS (floating matter), oil, and the like.

そこで本発明は上記問題に鑑み、従来のプラスチック、不織布、合成繊維、ひも状の接触濾材等を使用することなく、間伐材を5cm〜7cmに破砕しチップ状に加工した濾材を使用する。チップ状に加工した接触濾材の容積は、チップの厚みの3乗に比例し、接触濾材の面積を大幅に増大させ、濾過の役割を果たすことに至った。以上のことから従来の無機、有機の濾材との比較として嫌気、中気、好気性の濾床の面積が大幅に増大することでバクテリアの繁殖が促進されより一層浄化効率が高まる。  Therefore, in view of the above problems, the present invention uses a filter medium obtained by crushing a thinned material into 5 cm to 7 cm and processing it into a chip shape without using conventional plastics, nonwoven fabrics, synthetic fibers, string-like contact filter media and the like. The volume of the contact filter medium processed into a chip shape is proportional to the cube of the thickness of the chip, greatly increasing the area of the contact filter medium and leading to the role of filtration. From the above, as compared with conventional inorganic and organic filter media, the area of anaerobic, medium, and aerobic filter beds is greatly increased, so that bacterial growth is promoted and purification efficiency is further enhanced.

この間伐チップ濾材を使用することにより従来の第1、2沈澱分離槽による嫌気処理、嫌気濾床、接触バッキ槽による好気処理が不要となる。また好気性処理に使用するブロワー散気管、好気濾床、嫌気濾床等を使用せず、単独槽による嫌気、中気、好気性菌による処理方式が可能となり、発生汚泥の処理が必要なくなる。  By using this thinning chip filter medium, the conventional anaerobic treatment by the first and second sedimentation separation tanks, the anaerobic filter bed, and the aerobic treatment by the contact back tank are unnecessary. Also, without using blower air diffuser, aerobic filter bed, anaerobic filter bed, etc. used for aerobic treatment, it is possible to treat with anaerobic, medium and aerobic bacteria in a single tank, eliminating the need for treatment of generated sludge .

合併槽内に円筒管を縦方向に設置することにより流入する汚水や有機物を合併槽下部に順次、流入することができ槽全体の分解処理効率を向上することができる。  By installing the cylindrical tube in the merger tank in the vertical direction, the inflowing sewage and organic matter can be sequentially introduced into the lower part of the merger tank, and the decomposition efficiency of the entire tank can be improved.

有機物が微生物によって分解されていく行程のなかでは、BODの約40%〜60%は微生物の細胞の形態で固定され、懸濁物質SSに変化し、スラッジの分離分解処理をしなくてはならないが、間伐チップ濾材を使用することにより、次のようになる。このチップ濾材に繁殖し、増殖していく過程の中で、スクロース(ショ糖)、グルコース(ブドウ糖)等が分解陽性であり、またいずれも栄養細胞内の菌体偏央部に芽胞を持ち、菌が活発に動き回ることができる。また、栄養、温度、水分の条件があえば発芽して分裂増殖を行う。このような菌の働きとともに分裂増殖を繰り返しながら有機物を分解するので、含水率の高い汚泥を排出発生することなく分解浄化され、また、スカムの発生を抑制するとともに悪臭に対しても消臭浄化が可能になる。そして、間伐チップ材の補充をすることの他は、メンテナンスのほぼかからない合併処理浄化槽及びグリストラップ槽の提供が可能となった。  In the process in which organic matter is decomposed by microorganisms, about 40% to 60% of BOD must be fixed in the form of microbial cells, converted to suspended matter SS, and sludge must be separated and decomposed. However, by using thinned chip filter media, it becomes as follows. In the process of propagating and proliferating on this chip filter medium, sucrose (sucrose), glucose (glucose), etc. are positive for degradation, and both have spores in the central part of the microbial cells in vegetative cells, Bacteria can move around actively. In addition, germinate and divide and proliferate if there are nourishing, temperature and moisture conditions. The organic matter is decomposed while repeating the division and growth along with the function of such bacteria, so it is decomposed and purified without discharging sludge with a high water content, and it also suppresses the generation of scum and deodorizes and eliminates bad odors. Is possible. In addition to replenishing thinned chip material, it has become possible to provide a combined treatment septic tank and a grease trap tank that require little maintenance.

通常の接触濾材を利用するにはそれぞれ設置場所の選定に問題があると共に微生物の繁殖と有機物の分解作用については考えておらず単に充填材また接触材として活用しているのにすぎない。  In order to use ordinary contact filter media, there are problems in selecting the installation location, and the propagation of microorganisms and the decomposition of organic matter are not considered, but they are merely used as fillers or contact materials.

しかし、本発明は上述の実状に対応すべきチップ材の多孔室性に着目し、かつ従来の接触濾材と比較した場合に濾床面積の増大化を図り、なおかつチップ濾材の大きさの設定により使用形態を任意に選択可能な接触濾材である。また、合併処理浄化槽、グリストラップ槽の直方体の槽内部すみずみまで充填活用することにより、容積を有効に活用し、接触面積の増大を図ることができるとともに、微生物群を接触濾材内外部において繁殖させるのに適し、有機物、油分等の分解作用を高め汚水排水に対して、効率よく浄化することが可能である。  However, the present invention pays attention to the porous chamber property of the chip material that should correspond to the above-mentioned actual situation, and increases the filter bed area when compared with the conventional contact filter medium, and further, by setting the size of the chip filter medium It is a contact filter medium whose usage form can be arbitrarily selected. In addition, by filling and using the inside of the rectangular parallelepiped tank of the combined treatment septic tank and grease trap tank, the volume can be used effectively, the contact area can be increased, and the microorganism group can be propagated inside and outside the contact filter medium. Therefore, it is possible to efficiently purify sewage drainage by increasing the decomposition action of organic matter and oil.

発明の実施するための最良の形態BEST MODE FOR CARRYING OUT THE INVENTION

以下、図面に基づいて本発明の実施形態について説明する。  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図1は本発明の実施形態にかかる間伐材を濾材とした合併処理浄化槽及びグリストラップ槽の概略構成図を示したものである。
図1、2に示すように本実施形態にかかる合併処理浄化槽は、生活雑排水及び油分の多い食品排水を流入させる流量調整槽1に設置された破砕式水中ポンプ2により送水管3を通して合併槽本体4に流入する。送水管3を通して流入した排水は、インバート7を介して、順次送水連結管16、17、19、20、22、23、25、26、28、29より円筒管15へと流入する。円筒管15を通して間伐チップ濾材8に透過していく。また図3の円筒管45に設けられた流入孔30より排水はチップ濾材38を透過して下部に貯留され、浄化が促進される。浄化された排水は仕切板9の下部にある排水孔10を通り貯留槽12へと流入し排水ポンプ11より消毒槽13へと送水されるよう構成している。
FIG. 1: shows the schematic block diagram of the merger processing septic tank and grease trap tank which used the thinning material concerning embodiment of this invention as a filter medium.
As shown in FIGS. 1 and 2, the merged treatment septic tank according to this embodiment is a merged tank through a water supply pipe 3 by a crushing submersible pump 2 installed in a flow rate adjusting tank 1 into which miscellaneous wastewater and oily food wastewater are introduced. It flows into the main body 4. The wastewater that has flowed in through the water supply pipe 3 sequentially flows into the cylindrical pipe 15 through the water supply connection pipes 16, 17, 19, 20, 22, 23, 25, 26, 28, and 29 through the invert 7. It passes through the cylindrical tube 15 and passes through the thinned chip filter medium 8. Further, the drainage passes through the tip filter medium 38 through the inflow hole 30 provided in the cylindrical tube 45 of FIG. 3 and is stored in the lower portion, thereby promoting purification. The purified waste water is configured to flow into the storage tank 12 through the drain hole 10 in the lower part of the partition plate 9 and to be sent from the drain pump 11 to the disinfection tank 13.

図2は本実施形態において用いられる合併処理浄化槽及びグリストラップ槽の平面図を示したものである。
水液量点検口5は水液量の点検及びチップ濾材の投入口であり、チップ投入口6は合併槽、グリストラップ槽へのチップ濾材の投入口である。接触濾材の経年変化によるチップ濾材の補充を行うために排水側送水連結管29方向へ左右10ヶ所に設置されている。
FIG. 2 is a plan view of the merged treatment septic tank and grease trap tank used in the present embodiment.
The water / liquid amount inspection port 5 is an inspection port for the amount of water / liquid and the inlet for the chip filter medium, and the chip input port 6 is an inlet for the chip filter medium into the combined tank and the grease trap tank. In order to replenish the chip filter medium due to the aging of the contact filter medium, it is installed at 10 places on the left and right sides in the direction of the drainage side water supply connecting pipe 29.

図3は本実施形態において用いられる円筒管図である。
図2の合併槽4内部に10本設置した。図3の円筒管45内部にチップ濾材38を下部から約1m充填させる。この円筒管45は日量の排水量により直径100mm〜200mmの管を使用することが望ましい。また、円筒管45内部には水液量点検口35から300mm下部より直径20mm〜30mmの流出孔30を設けている。
FIG. 3 is a cylindrical tube diagram used in this embodiment.
Ten were installed in the merge tank 4 of FIG. The chip filter medium 38 is filled into the cylindrical tube 45 of FIG. It is desirable to use a tube having a diameter of 100 mm to 200 mm as the cylindrical tube 45 depending on the daily amount of drainage. In addition, an outflow hole 30 having a diameter of 20 mm to 30 mm is provided in the cylindrical tube 45 from the lower part of the water / liquid amount inspection port 35 by 300 mm.

図4は本実施形態において用いられるチップ濾材38の平面図である。  FIG. 4 is a plan view of the chip filter medium 38 used in this embodiment.

図5は本実施形態において用いられるチップ濾材38の断面図である。  FIG. 5 is a cross-sectional view of the chip filter medium 38 used in the present embodiment.

図4、図5のチップ濾材38は、間伐材を長さ1m程度に切断をし、木材の破砕機を通して、厚さ1.5cm、長さ5〜7cmのチップ状に破砕したものである。  The chip filter medium 38 of FIGS. 4 and 5 is obtained by cutting a thinned material into a length of about 1 m and crushing it into a chip shape having a thickness of 1.5 cm and a length of 5 to 7 cm through a wood crusher.

本実施形態にかかる合併処理浄化槽及びグリストラップ槽は図1、図2、図3に示すように構成され次のように機能する。
本実施形態においてまず、一般生活排水及び食品関連施設より排出された雑排水及びスラリー性、油分濃度の高い排水が1の流量調整槽内に設置された破砕式水中ポンプ2より圧送され、送水管3を通してインバート7を介して順次送水連結管16から29よりそれぞれの円筒管15へ排水が流入されることを特徴とする。この時送水管3側のインバート7に接続されている左右10本の円筒管15のチップ濾材8に排水が冠水された後、順次排水側へと移行し浄化が進行される。
The merged treatment purification tank and grease trap tank according to this embodiment are configured as shown in FIGS. 1, 2, and 3 and function as follows.
In this embodiment, first, general wastewater and miscellaneous wastewater discharged from food-related facilities and wastewater with high slurry concentration and oil concentration are pumped from a crushing submersible pump 2 installed in one flow control tank, and a water pipe 3 through the invert 7 through the water feed connecting pipes 16 to 29 to the respective cylindrical pipes 15. At this time, after drainage is submerged in the tip filter medium 8 of the left and right cylindrical tubes 15 connected to the invert 7 on the water supply pipe 3 side, the drainage side is sequentially shifted to purify.

合併槽4内部に充填されたチップ濾材8及び円筒管15に貯留されている水位は、ほぼ同位量となる。排水が冠水されている下部位が嫌気濾材となり固液分離を促進する。界面及び界面上部においては嫌気、好気の濾床となる。このバクテリアの繁殖により浄化効率機能を向上させる。合併槽本体4に充填するチップ濾材8の容積は従来活用されているプラスチック、不織布、合成繊維等で加工された濾材の表面積に対して数倍の接触面積を持つこととなる。合併槽及びグリストラップ槽内部における滞留時間及び接触時間も同等となり、BOD、COD、油分の分解を促進させることが可能となる。  The water level stored in the chip filter medium 8 and the cylindrical tube 15 filled in the merged tank 4 is almost equal to the amount of water. The lower part where the drainage is flooded becomes an anaerobic filter medium and promotes solid-liquid separation. An anaerobic and aerobic filter bed is formed at the interface and at the top of the interface. This bacteria breeding improves the purification efficiency function. The volume of the chip filter medium 8 filled in the merged tank body 4 has a contact area several times as large as the surface area of the filter medium processed with plastics, nonwoven fabrics, synthetic fibers and the like that have been conventionally used. The residence time and contact time inside the merged tank and grease trap tank are also equivalent, and it becomes possible to promote the decomposition of BOD, COD, and oil.

各種排水の悪臭の原因は排水中に含まれる有機物等が嫌気性菌による分解の働きによって変化し腐敗して発生する。この時に発生する硫黄化合物であるメチルカプタン類や窒素化合物であるアンモニア、アミン類等の悪臭物質をN(窒素)、S(硫黄)、CO(二酸化炭素)、HO(水)に分解される。またバクテリアの繁殖の過程で酸素を必要とするが、生活雑排水等が合併処理槽に圧送、流入する中でチップ濾材間を通過し、チップ濾材の内部は嫌気性となり汚水排水が通過して行くに従い、汚水と置換されることにより内部に酸素が取り込まれ好気性へと変化していく。この嫌気、好気の繰り返しにより発酵、分解、消化、消滅の行程を繰り返すことにより浄化、消臭処理が可能となる。The cause of the bad odor of various wastewaters is that organic matter contained in the wastewater changes due to decomposition by anaerobic bacteria and decays. Malodorous substances such as methylcaptans, which are sulfur compounds generated at this time, and ammonia, amines, which are nitrogen compounds, are decomposed into N (nitrogen), S (sulfur), CO 2 (carbon dioxide), and H 2 O (water). The Oxygen is required in the process of bacterial propagation, but wastewater etc. passes through the chip filter medium as it is pumped and flows into the combined treatment tank, and the inside of the chip filter medium becomes anaerobic and wastewater drainage passes. As it goes, oxygen is taken into the inside by replacing it with sewage, and it changes to aerobic. By repeating the steps of fermentation, decomposition, digestion, and extinction by repeating this anaerobic and aerobic treatment, purification and deodorization treatment can be performed.

臭気濃度、アンモニア、硫化水素について、ポンプアップの前後の値を  For odor concentration, ammonia and hydrogen sulfide, the values before and after pumping up

表1Table 1

のように測定した。
Was measured as follows.

また、5人槽から20人槽の合併処理浄化槽において、間伐チップ濾材を5m〜20mの数量で変化をさせた結果(JISK0102−21)、BOD250ppmの基礎数値の約98%が除去された。In addition, in the merger treatment septic tank from 5 tanks to 20 tanks, as a result of changing the thinning chip filter medium by the quantity of 5m 3 to 20m 3 (JISK0102-21), about 98% of the basic value of BOD 250ppm was removed. .

本発明は、地場資源である間伐材を利用した、間伐チップ材を濾材とし、槽内部に円筒形状のパイプを使うことにより、酸素、温度、水分等の働きによりバクテリアに最適な濾床空間を与えることができ、最も自然環境に優しい合併処理浄化槽及びグリストラップ槽である。  The present invention uses a thinning chip material, which is a local resource, and uses a thinning chip material as a filtering material, and uses a cylindrical pipe inside the tank, thereby providing an optimum filter bed space for bacteria by the action of oxygen, temperature, moisture, etc. The most natural and environment-friendly combined treatment septic tank and grease trap tank that can be given.

一般生活排水及び食品関連施設からの排水に対して、沈澱分離槽、接触バッキ槽、沈澱室等を設けず、一体化された槽内部において従来成し得なかった自然界の働きにより、嫌気、中気、好気性バクテリアの分解を行い、消臭効果、浄化効率の高い合併槽及びグリストラップ槽の提供が可能となる。また、間伐材の有効利用と成り得る。そして一般生活排水、食品関連施設、また畜産関連等の各種排水の各処理に組み合わせることより、より効果的な排水浄化処理を効率よくおこなうことが可能となる。この処理水を放流することにより、現在河川、湖沼での汚染の要因である、水の富栄養化を防ぐことができる。  For wastewater from general domestic wastewater and food related facilities, there is no settling tank, contact tank, settling chamber, etc. It is possible to decompose aerobic bacteria and provide a combined tank and a grease trap tank with high deodorizing effect and high purification efficiency. It can also be an effective use of thinned wood. And it becomes possible to perform more effective waste water purification processing efficiently by combining with each treatment of various waste waters, such as general domestic waste water, food related facilities, and livestock related. By discharging this treated water, it is possible to prevent eutrophication of water, which is currently a cause of pollution in rivers and lakes.

合併処理浄化槽、グリストラップ槽の構成図Configuration diagram of merger processing septic tank and grease trap tank 合併処理浄化槽、グリストラップ槽の平面図Top view of merger processing septic tank and grease trap tank 円筒管図Cylindrical pipe diagram チップ濾材の平面図Top view of chip filter media チップ濾材の断面図Cross section of chip filter media

符号の説明Explanation of symbols

1 流量調整槽
2 破砕式水中ポンプ
3 送水管
4 合併槽本体
5、35 水液量点検口
6 チップ投入口
7 インバート
8、38 チップ濾材
9 仕切板
10 排水孔
11 排水ポンプ
12 貯留槽
13 消毒槽
14 排水管
15、45 円筒管
16、17、18、19、20、
21、22、23、24、26、
26、27、28、29 連結送水管
30 流出孔
DESCRIPTION OF SYMBOLS 1 Flow control tank 2 Crushing type submersible pump 3 Water supply pipe 4 Combined tank main body 5, 35 Water liquid amount inspection port 6 Chip inlet 7 Invert 8, 38 Chip filter medium 9 Partition plate 10 Drain hole 11 Drain pump 12 Storage tank 13 Disinfection tank 14 Drain pipe 15, 45 Cylindrical pipe 16, 17, 18, 19, 20,
21, 22, 23, 24, 26,
26, 27, 28, 29 Connecting water pipe 30 Outflow hole

Claims (4)

間伐材をチップ状に破砕し、好気性、中気性及び嫌気性微生物の繁殖を促進させるための濾床とすることを特徴とする接触濾材。  A contact filter medium comprising a filter bed for crushing thinned wood into chips and promoting the growth of aerobic, aerobic and anaerobic microorganisms. 円筒形状のパイプに複数個の穴を設け、円筒形状のパイプの下部に請求項1の接触濾材を充填し、汚水及び雑排水が透過することにより、汚水及び雑排水の分解処理効率を向上させることを特徴とした円筒形状のパイプ。  A cylindrical pipe is provided with a plurality of holes, and the lower part of the cylindrical pipe is filled with the contact filter medium according to claim 1, so that the wastewater and miscellaneous drainage permeate, thereby improving the efficiency of decomposition of the wastewater and miscellaneous drainage. A cylindrical pipe characterized by that. 請求項2のパイプを合併槽内部に並列に複数本6本〜10本を固定設置し、汚水及び雑排水がパイプを透過し、また合併槽内部に請求項1の接触濾材を充填し、汚水及び雑排水が透過することにより、汚水及び雑排水の分解処理効率を向上させることを特徴とした合併処理浄化装置。  A plurality of pipes of 10 to 10 are fixedly installed in parallel in the merged tank inside the merged tank, sewage and miscellaneous drainage permeate the pipe, and the contact filter medium of claim 1 is filled inside the merged tank. And the combined treatment purification apparatus characterized by improving the decomposition processing efficiency of sewage and miscellaneous drainage by allowing miscellaneous drainage to permeate. 請求項2のパイプをグリストラップ槽内部に並列に複数本6本〜10本を固定設置し、食品関連施設から排出されるスラリー性が高くまた油分を多量に含んだ食品廃水がパイプを透過し、またグリストラップ槽内部に請求項1の接触濾材を充填し、食品廃水汚水及び雑排水が透過することにより、分解処理効率を向上させることを特徴としたグリストラップ槽。  A plurality of the pipes of claim 2 are fixedly installed in parallel in the grease trap tank, and the food wastewater having a high slurry property and containing a large amount of oil discharged from food-related facilities permeates the pipe. Moreover, the grease trap tank is filled with the contact filter medium according to claim 1 to allow food wastewater sewage and miscellaneous drainage to pass through, thereby improving the decomposition treatment efficiency.
JP2004229956A 2004-07-09 2004-07-09 Combined sewage treatment tank and grease trap tank using thinning material as filter medium Pending JP2006021182A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103204609A (en) * 2013-04-16 2013-07-17 四川同佳环保科技有限责任公司 Sewage treatment method for small and medium hospitals
CN105936566A (en) * 2016-05-31 2016-09-14 王翔 Medical waste liquid treatment system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103204609A (en) * 2013-04-16 2013-07-17 四川同佳环保科技有限责任公司 Sewage treatment method for small and medium hospitals
CN105936566A (en) * 2016-05-31 2016-09-14 王翔 Medical waste liquid treatment system

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